This is a king of an insulated stainless steel water bottle, with a small caliber and large capacity, double-walled vacuum, which can effectively keep hot for 12 hours and keep cold for 24 hours. Food grade 18/8 stainless steel inner and outer walled, plastic sprayed outer walled anti-scratch. Variety Lids are available, a Variety of capacities are available, and different colors are available. Large imprint area, perfect for brand advertising, ideal gift for traveling and camping. Laser engraved imprint machine washed workable. Non-slip bottom, non-toxic, No metal taste or rust, BPA free.